From owner-freebsd-net Thu Jul 23 18:08:15 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id SAA07491 for freebsd-net-outgoing; Thu, 23 Jul 1998 18:08:15 -0700 (PDT) (envelope-from owner-freebsd-net@FreeBSD.ORG) Received: from george.arc.nasa.gov (george.arc.nasa.gov [128.102.194.142]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id SAA07485 for ; Thu, 23 Jul 1998 18:08:11 -0700 (PDT) (envelope-from lamaster@george.arc.nasa.gov) Received: from localhost (lamaster@localhost) by george.arc.nasa.gov (8.8.7/8.8.7) with SMTP id SAA15894 for ; Thu, 23 Jul 1998 18:07:41 -0700 (PDT) Date: Thu, 23 Jul 1998 18:07:40 -0700 (PDT) From: Hugh LaMaster To: freebsd-net@FreeBSD.ORG Subject: Re: Looking for a 2 channel Fast Ethernet NIC In-Reply-To: <199807131404.KAA29121@itd.nrl.navy.mil> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Mon, 13 Jul 1998, Craig Metz wrote: > Another suggestion: Try to maximize the number of IRQs available for > allocation to PCI devices. Remember that a dual-port board (at least the SMC) > is going to take up two of them. (As far as I can tell, the multi-Tulip designs > like the Adaptec that try to conserve IRQs end up causing more problems than > they solve) Move ISA boards to lower IRQs, and disable everything in your BIOS > that you're not using (e.g., IDE, USB, and allocating IRQs to the video board). I hope you are not saying that they can't all share an IRQ if necessary? I'm flat out of IRQs. Isn't everybody? It seems obvious that a 4-port NIC would exhaust the standard PCI IRQs. Add a SCSI controller or two, maybe multiport, a video capture card, and, where are you? If you can't share IRQs, you might as well not bother with the multiport NIC in the first place. -- Hugh LaMaster, M/S 233-21, ASCII Email: lamaster@george.arc.nasa.gov NASA Ames Research Center Or: hlamaster@arc.nasa.gov Moffett Field, CA 94035-1000 No Junkmail: USC 18 section 2701 Phone: 650/604-1056 Disclaimer: Unofficial, personal *opinion*. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message